Other incentives eh? Sounds rather dodgey to me.
I'd be willing to offer a free copy of my IDE once it's finished
or
$$ How much?
up to about 20$US
If anyone wishes to start - here is the source and homepage:
http://www.projectstudioide.com/files/sidplay-libs-2.1.1.zip
http://sourceforge.net/project/showfiles.php?group_id=9266